After their snack, Ranger Tom suggested they go on a hike to see a waterfall. Mary was excited, but her brother was worried about getting lost. Ranger Tom reassured them that he knew the way and would keep them safe. As they hiked, the trail got steeper and rockier. Mary's mom had to help her brother up some of the steep parts. Mary was a little scared, but she trusted Ranger Tom and her family to keep her safe. Suddenly, they heard a loud rumbling noise and saw the waterfall in the distance.